Form for molding concrete walls



Dec, 16, 1924. 1,519,418

F. H. PECK FORM FOR MOLDING CONCRETE WALLS Filed July 2l, 1922 2Sheets-Sheet l 5.3. L." Swan/(vb Hemmyfzam @5w #dxf W Grrofmw,

F. H. PECK Filed July Bul, 1922 FORM' FOR [HOLDING CONCRETE WALLSPatented Dea. 25.6, lQf/.

FORM FOR HOLDING CONCRETE 11F/TALES.

Application led July 21, 1922.

7 7o all whom t may concern.'

Be it known that l, FLnMrNc l-l. Puck., a citizen of the United Statesot America. and resident ot the citiot Seattle. in tbe county ot Kingand State ot Washington. have invented certain new and usefullmprovements in Forms tor Molding' Concrete l/Valls ot which the-following is a specification.

My invention relates to t-he construction of forms used in moldingconcrete structures and consists ot certain parts constructed in such away that they may be used as the frame work or supporting members torthe boards or like members which are used to shape the outer surface etthe concrete.

The object of my invention is to provide the material used for theconstruction ot these forms, in such shape that it is readily adapted toall the varying sizes and forms in which it is ordinarily desired tomold concrete for structural. purposes and to have this material suchthat it may be quickly put in place and also quickly disassembled ortaken down. f

My invention consists ot the tea-tures ot construction and novelcombinations of parts which l will hereinafter describe and thenparticularly point out in the claims terminating this specification.

In the accompanying drawings l have shown my invention in a constructionwhich is that now most preferred by me.

Figure 1. is a top or plan view ot my invention as applied to theformino' ot a corner in a foundation wall.

Figure 2 is a side view or elevation ot the same parts.

Figure 3 is a sectional elevation showing enough construction toindicate the manner of applying this in the molding ot ordinary Wall.

Figure 4 shows., in perspective, the manner of placing the mold for twowalls joining at the corner.

Figure 5 is a sectional elevation showing slightly modified constructionot one ot the parts.

In the formation ot concrete walls the cost ot constructinga the moldsmounts often to a very considerable item. lt is a purpose of thisinvention to provide a construction of certain parts, such that they maybe user.. to quickly assemble these molds and such that after theconcrete wall has been formed Serial N10. 576,428.

and set, the molds may be quickly taken down and without destroyingl theparts thereof, so that these may be again used at other points. Thechief and novel teatures lie in the construction ot the posts which areemployed tor holdingl the boards used in their proper place and themanner ot supporting these in proper position and securing' the boardthereto.

For the posts to which the boards are to be secured. l employ rolledmetal sections. these being` cut ot a suitable length. These posts maybe made ot1 different sections. but

the section which l most prefer to use F the angle bar. These bars lhave a series ot holes, l0., distributed at short distances along` thelength ot both flanges thereof and preferably well toward the outereda'es of the flanges as thus it will be easy to drive nails throughthese holes. These holes are provided in both flanges, so that eitherange ot the angle bar may be used against which to secure the boards.rllhe boards 2 are placed against the 'faces ot post l, and small nailsinserted in the holes 10 and driven into the wood. Preferably thesenails should be of such a length that they will not pierce the opposite?or inner tace ot the boards.

rllhe ends of the bars l are provided with notches 1l.. which arepreferably made at the junction ot the two flanges. These notches may belil-shaped or square at the bottom as desired. The ends the bars may besecured together by usino' a rod. as 3, which has its ends bentlaterally to torni offset sections or hooks 31 which hook over theoutside ot the bars and which prevent their separatingV beyond a certaindistance. rThese connecting rods 3 may be straight, except for a singlebend 30 at the ends or they may be made as shown in Figure 5.` whereinthey are bent to form a trl-shaped end 31. the two sides ot which areshaped so as to snugly tit over the flange of the angle bar. In thiscase these rods act as spacers to prevent the bars 1 from being broughttogether and also as tie rods to prevent separation. The spacing apartot the two walls of the mold may be secured. b v the insertion of woodblocks which would be removed before they become buried in the concrete,or in any other suitable manner.

Where the length of the posts l which are being employed is so greatthat supporting AJU tie rods are needed between their ends, this may besecured by using Wires, as t, Which connect opposite posts and Which maybe left in the Wall. These Wires may be made of such a size that theymay be passed through the holes l in the flange, as is 'shown in Figure3, or they may be passed entirely around the angle bars, as is shown inFigures 1 and 2. These Wires may be passed between adjacent edges of twoof the boards which forni the Walls. The ends of the Wire may be twistedtogether and this joint may be inade at any point desired, either Withinthe space to be occupied by the Wall or outside of the forms. When it isdesired to take down the Tterms, these Wires will be cut and the endswhich project from the finished Wall will be cut oli' flush with theWall, by the use of Wire cutters.

l prefer to provide the ends of the bars l with a hole of such size thata rod 50 of material size may be passed therethrough. Such a rod may beemployed for connecting a number oit' posts l and thus, at times, helpto keep the posts together and to assist in the construction of themolds. The rods 5 may, Whenever desir-ed, be provided with spacers whichwill hold the posts 1 definite distances apart.

After the concrete has been poured in a mold and has been set so that itis desired to remove the molds, the tie rods 3 are readily removed. rlhetie rods 3 Which connect the lovver ends of the bars l, must be left inthe Wall, if they vvare used at this point. rihe tie wires 4: may alsobe cut. lt is then an easy matter to pry the bars 1 free from theboa-rds 2, as. the nails used .to secure the boards in place are smalland the holes in the bars through which the nails pass lit snugly aroundthe nail and, in consequence, the material forming the molds need not bebroken in knocking down the molds. It may therefore be substantially allused again 'for forming molds.

What I claim as my invention is:

1. A' post for use in forming molds ior concrete Walls consisting of anangle bar having nail -holes distributed along its flanges and notchesopening at their ends and adapted ifcr the reception o-t tie rods.

2. A form for use in molding concrete walls comprising aser-ies of anglebars hav ing nail receiving holes spaced along their iianges, and boardssecured by nails driven through said holes, and tie rods having hookedends adapted to engage posts at opposite sides of the wall to preventtheir separation.

3. A forni for use in molding concrete walls comprising a series ofangle bars having nail receiving holes spaced along their flanges, andnotches in their ends, tie rods having hooked ends adapted to enter saidnotches, and boards secu-red by nails driven through said holes.

4i. A post for use in making vforms for concrete Walls comprising anangle bar having nail-receiving holes spaced along its flanges and anotch opening` at its end and including the bases of each flange andadapted for the reception of tie rods.

5. A form construction for concrete Walls comprising posts composed oi"angle bars provided with nail-receiving holes` in, their flanges and anotch in each end located at the point Where the tWo flangesjoin, andtie rods having laterally bent ends and adapted to enter said notchesand to hold together pposite sides of the Wall.

Signed at Seattle, King County, Washington this th day of July, 1922.

FLEMING H. PECK.

